Creating a dinosaur garden in an outdoor plant box is a fantastic way to blend prehistoric charm with modern gardening. To achieve an authentic Jurassic vibe, focus on plants that resemble those from the Mesozoic era or have a rugged, ancient appearance. Here are the best plants to include:

1. Ferns – These lush, leafy plants were abundant during the dinosaur age. Opt for species like the Australian Tree Fern or Maidenhair Fern for a dense, prehistoric look.

2. Cycads – Often called "living fossils," cycads have been around since the time of dinosaurs. Their palm-like fronds add a dramatic touch.

3. Horsetail (Equisetum) – With its segmented stems, horsetail mimics the look of ancient plants and thrives in moist conditions.

4. Ginkgo Biloba – Known as one of the oldest tree species, its fan-shaped leaves bring a timeless elegance.

5. Dinosaur Kale – While not prehistoric, its textured leaves fit the theme and add edible appeal.

For extra flair, incorporate rocks, driftwood, and miniature dinosaur figurines. Water regularly and ensure partial shade to mimic a dinosaur’s natural habitat. With these plants, your outdoor plant box will transform into a captivating dinosaur garden!